Modal Analysis and Sound Field Simulation of Vibration Panels in a Free Sound Field and in a Rectangular Enclosure

Kawahara K, Sonogi A, Sato SY. Modal Analysis and Sound Field Simulation of Vibration Panels in a Free Sound Field and in a Rectangular Enclosure. In: AES Convention 130. Audio Engineering Society; 2011. Paper 8442. Available from: https://aes.org/publications/elibrary-page/?id=15909

@inproceedings{Kawahara2011_15909,
  author = {Kawahara, Kazuhiko and Sonogi, Akihiro and Sato, Shin-ya},
  title = {{Modal Analysis and Sound Field Simulation of Vibration Panels in a Free Sound Field and in a Rectangular Enclosure}},
  booktitle = {AES Convention 130},
  note = {Paper 8442},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15909}
}

TY  - CPAPER
TI  - Modal Analysis and Sound Field Simulation of Vibration Panels in a Free Sound Field and in a Rectangular Enclosure
AU  - Kawahara, Kazuhiko
AU  - Sonogi, Akihiro
AU  - Sato, Shin-ya
T2  - AES Convention 130
M1  - Paper 8442
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15909
PB  - Audio Engineering Society
LA  - en
AB  - Several types of implementation of panel loudspeakers(for example, distributed mode loudspeaker (DML))for are proposed. The diaphragm of a DML is thought as behave like a bending plate. The diaphragm of an electrostatic loudspeaker is thought move as a rigid plate. What is the difference of an acoustical sound field generation feature with each implementation? In this paper, we used models of same dimensional rectangular panel. One is a rigid diaphragm. Another is a bending panel that has an actuator in the center of it. We made directivity simulations. We made simulations of sound pressure distribution in a rectangular room. We could show less coherent SPL distribution in the case of a bending panel.
ER  -